Insulated paper cup
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 8, 1992
Grant Date -
N/A
app pub date -
Dec 10, 1991
filing date -
Dec 10, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An insulated paper cup having inner and outer frustoconcial shells, the inner shell being more tapered than the outer shell. The upper rims of both shells are outwardly curled and joined together. The outer shell has a recessed bottom upon which the bottom of the inner shell rests. The inner surface of the inner shell is coated with a plastic film such as polyethylene.
First Claim
Family
International Classification(s)
Cited Art Landscape
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